1.

Features

– Utilizes Different Array Protection Compared to the AT24C02B

–1.8 (V

– Endurance: One Million Write Cycles

– Data Retention: 100 Years

2.

Description

The AT24HC02B provides 2048 bits of serial electrically erasable and programmable

read-only memory (EEPROM) organized as 256 words of 8 bits each. The device is

optimized for use in many industrial and commercial applications where low-power

and low-voltage operation are essential. The AT24HC02B is available in space-saving

8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a

two-wire serial interface. In addition, the entire family is available in 1.8V (1.8V to

5.5V) version.

Table 2-1.

Pin Configuration

Pin Name

Function

A0–A2

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

WP

Write Protect

Two-wire Serial

EEPROM

2K (256 x 8)

AT24HC02B

Not Recommended

for New Design.

Replaced by

AT24HC02C.

Rev. 5134E–SEEPR–3/08

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead PDIP

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead SOIC

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead TSSOP